19804842

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:403

約数の個数: 48

約数和(自身を含む): 44602272

約数和(自身を除く): 24797430

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 131, 222, 227, 262, 333, 393, 454, 666, 681, 786, 1179, 1362, 2043, 2358, 4086, 4847, 8399, 9694, 14541, 16798, 25197, 29082, 29737, 43623, 50394, 59474, 75591, 87246, 89211, 151182, 178422, 267633, 535266, 1100269, 2200538, 3300807, 6601614, 9902421, 19804842]

約数ペア:

[(1, 19804842), (2, 9902421), (3, 6601614), (6, 3300807), (9, 2200538), (18, 1100269), (37, 535266), (74, 267633), (111, 178422), (131, 151182), (222, 89211), (227, 87246), (262, 75591), (333, 59474), (393, 50394), (454, 43623), (666, 29737), (681, 29082), (786, 25197), (1179, 16798), (1362, 14541), (2043, 9694), (2358, 8399), (4086, 4847)]